/* Generic serial interface routines
- Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include <ctype.h>
extern void _initialize_serial (void);
-/* Is serial being debugged? */
+/* Is serial being debugged? */
static int global_serial_debug_p;
-/* Linked list of serial I/O handlers */
+/* Linked list of serial I/O handlers. */
static struct serial_ops *serial_ops_list = NULL;
-/* This is the last serial stream opened. Used by connect command. */
+/* This is the last serial stream opened. Used by connect command. */
static struct serial *last_serial_opened = NULL;
-/* Pointer to list of scb's. */
+/* Pointer to list of scb's. */
static struct serial *scb_base;
/* Non-NULL gives filename which contains a recording of the remote session,
- suitable for playback by gdbserver. */
+ suitable for playback by gdbserver. */
static char *serial_logfile = NULL;
static struct ui_file *serial_logfp = NULL;
-static struct serial_ops *serial_interface_lookup (char *);
-static void serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout);
+static struct serial_ops *serial_interface_lookup (const char *);
+static void serial_logchar (struct ui_file *stream,
+ int ch_type, int ch, int timeout);
static const char logbase_hex[] = "hex";
static const char logbase_octal[] = "octal";
static const char logbase_ascii[] = "ascii";
static int serial_current_type = 0;
-/* Log char CH of type CHTYPE, with TIMEOUT */
+/* Log char CH of type CHTYPE, with TIMEOUT. */
/* Define bogus char to represent a BREAK. Should be careful to choose a value
that can't be confused with a normal char, or an error code. */
fputs_unfiltered ("\\v", stream);
break;
default:
- fprintf_unfiltered (stream, isprint (ch) ? "%c" : "\\x%02x", ch & 0xFF);
+ fprintf_unfiltered (stream,
+ isprint (ch) ? "%c" : "\\x%02x", ch & 0xFF);
break;
}
}
fputs_unfiltered (cmd, serial_logfp);
/* Make sure that the log file is as up-to-date as possible,
- in case we are getting ready to dump core or something. */
+ in case we are getting ready to dump core or something. */
gdb_flush (serial_logfp);
}
\f
static struct serial_ops *
-serial_interface_lookup (char *name)
+serial_interface_lookup (const char *name)
{
struct serial_ops *ops;
serial_ops_list = optable;
}
-/* Open up a device or a network socket, depending upon the syntax of NAME. */
+/* Open up a device or a network socket, depending upon the syntax of NAME. */
struct serial *
serial_open (const char *name)
if (strcmp (name, "pc") == 0)
ops = serial_interface_lookup ("pc");
- else if (strchr (name, ':'))
- ops = serial_interface_lookup ("tcp");
else if (strncmp (name, "lpt", 3) == 0)
ops = serial_interface_lookup ("parallel");
else if (strncmp (name, "|", 1) == 0)
{
ops = serial_interface_lookup ("pipe");
- open_name = name + 1; /* discard ``|'' */
+ /* Discard ``|'' and any space before the command itself. */
+ ++open_name;
+ while (isspace (*open_name))
+ ++open_name;
}
+ /* Check for a colon, suggesting an IP address/port pair.
+ Do this *after* checking for all the interesting prefixes. We
+ don't want to constrain the syntax of what can follow them. */
+ else if (strchr (name, ':'))
+ ops = serial_interface_lookup ("tcp");
else
ops = serial_interface_lookup ("hardwire");
scb->bufcnt = 0;
scb->bufp = scb->buf;
+ scb->error_fd = -1;
- if (scb->ops->open (scb, open_name))
+ /* `...->open (...)' would get expanded by the open(2) syscall macro. */
+ if ((*scb->ops->open) (scb, open_name))
{
xfree (scb);
return NULL;
return scb;
}
+/* Return the open serial device for FD, if found, or NULL if FD
+ is not already opened. */
+
struct serial *
-serial_fdopen (const int fd)
+serial_for_fd (int fd)
{
struct serial *scb;
- struct serial_ops *ops;
for (scb = scb_base; scb; scb = scb->next)
if (scb->fd == fd)
- {
- scb->refcnt++;
- return scb;
- }
+ return scb;
+
+ return NULL;
+}
+
+/* Open a new serial stream using a file handle, using serial
+ interface ops OPS. */
+
+static struct serial *
+serial_fdopen_ops (const int fd, struct serial_ops *ops)
+{
+ struct serial *scb;
- ops = serial_interface_lookup ("hardwire");
+ scb = serial_for_fd (fd);
+ if (scb)
+ {
+ scb->refcnt++;
+ return scb;
+ }
+
+ if (!ops)
+ {
+ ops = serial_interface_lookup ("terminal");
+ if (!ops)
+ ops = serial_interface_lookup ("hardwire");
+ }
if (!ops)
return NULL;
- scb = XMALLOC (struct serial);
+ scb = XCALLOC (1, struct serial);
scb->ops = ops;
scb->bufcnt = 0;
scb->bufp = scb->buf;
-
- scb->fd = fd;
+ scb->error_fd = -1;
scb->name = NULL;
scb->next = scb_base;
scb->async_context = NULL;
scb_base = scb;
+ if ((ops->fdopen) != NULL)
+ (*ops->fdopen) (scb, fd);
+ else
+ scb->fd = fd;
+
last_serial_opened = scb;
return scb;
}
+struct serial *
+serial_fdopen (const int fd)
+{
+ return serial_fdopen_ops (fd, NULL);
+}
+
static void
do_serial_close (struct serial *scb, int really_close)
{
fputs_unfiltered ("\nEnd of log\n", serial_logfp);
serial_current_type = 0;
- /* XXX - What if serial_logfp == gdb_stdout or gdb_stderr? */
+ /* XXX - What if serial_logfp == gdb_stdout or gdb_stderr? */
ui_file_delete (serial_logfp);
serial_logfp = NULL;
}
if (scb->refcnt > 0)
return;
- /* ensure that the FD has been taken out of async mode */
+ /* ensure that the FD has been taken out of async mode. */
if (scb->async_handler != NULL)
serial_async (scb, NULL, NULL);
int ch;
/* FIXME: cagney/1999-10-11: Don't enable this check until the ASYNC
- code is finished. */
+ code is finished. */
if (0 && serial_is_async_p (scb) && timeout < 0)
internal_error (__FILE__, __LINE__,
_("serial_readchar: blocking read in async mode"));
serial_logchar (serial_logfp, 'r', ch, timeout);
/* Make sure that the log file is as up-to-date as possible,
- in case we are getting ready to dump core or something. */
+ in case we are getting ready to dump core or something. */
gdb_flush (serial_logfp);
}
if (serial_debug_p (scb))
serial_logchar (serial_logfp, 'w', str[count] & 0xff, 0);
/* Make sure that the log file is as up-to-date as possible,
- in case we are getting ready to dump core or something. */
+ in case we are getting ready to dump core or something. */
gdb_flush (serial_logfp);
}
+ if (serial_debug_p (scb))
+ {
+ int count;
+
+ for (count = 0; count < len; count++)
+ {
+ fprintf_unfiltered (gdb_stdlog, "[");
+ serial_logchar (gdb_stdlog, 'w', str[count] & 0xff, 0);
+ fprintf_unfiltered (gdb_stdlog, "]");
+ }
+ gdb_flush (gdb_stdlog);
+ }
return (scb->ops->write (scb, str, len));
}
return scb->ops->get_tty_state (scb);
}
+serial_ttystate
+serial_copy_tty_state (struct serial *scb, serial_ttystate ttystate)
+{
+ return scb->ops->copy_tty_state (scb, ttystate);
+}
+
int
serial_set_tty_state (struct serial *scb, serial_ttystate ttystate)
{
serial_event_ftype *handler,
void *context)
{
- /* Only change mode if there is a need. */
- if ((scb->async_handler == NULL)
- != (handler == NULL))
- scb->ops->async (scb, handler != NULL);
+ int changed = ((scb->async_handler == NULL) != (handler == NULL));
+
scb->async_handler = handler;
scb->async_context = context;
+ /* Only change mode if there is a need. */
+ if (changed)
+ scb->ops->async (scb, handler != NULL);
}
int
deprecated_serial_fd (struct serial *scb)
{
/* FIXME: should this output a warning that deprecated code is being
- called? */
+ called? */
if (scb->fd < 0)
{
internal_error (__FILE__, __LINE__,
return scb->debug_p || global_serial_debug_p;
}
+#ifdef USE_WIN32API
+void
+serial_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except)
+{
+ if (scb->ops->wait_handle)
+ scb->ops->wait_handle (scb, read, except);
+ else
+ {
+ *read = (HANDLE) _get_osfhandle (scb->fd);
+ *except = NULL;
+ }
+}
+
+void
+serial_done_wait_handle (struct serial *scb)
+{
+ if (scb->ops->done_wait_handle)
+ scb->ops->done_wait_handle (scb);
+}
+#endif
+
+int
+serial_pipe (struct serial *scbs[2])
+{
+ struct serial_ops *ops;
+ int fildes[2];
+
+ ops = serial_interface_lookup ("pipe");
+ if (!ops)
+ {
+ errno = ENOSYS;
+ return -1;
+ }
+
+ if (gdb_pipe (fildes) == -1)
+ return -1;
+
+ scbs[0] = serial_fdopen_ops (fildes[0], ops);
+ scbs[1] = serial_fdopen_ops (fildes[1], ops);
+ return 0;
+}
#if 0
/* The connect command is #if 0 because I hadn't thought of an elegant
dont_repeat ();
if (args)
- fprintf_unfiltered (gdb_stderr, "This command takes no args. They have been ignored.\n");
+ fprintf_unfiltered (gdb_stderr,
+ "This command takes no args. "
+ "They have been ignored.\n");
printf_unfiltered ("[Entering connect mode. Use ~. or ~^D to escape]\n");
static void
serial_set_cmd (char *args, int from_tty)
{
- printf_unfiltered ("\"set serial\" must be followed by the name of a command.\n");
+ printf_unfiltered ("\"set serial\" must be followed "
+ "by the name of a command.\n");
help_list (serial_set_cmdlist, "set serial ", -1, gdb_stdout);
}
NULL, /* FIXME: i18n: */
&setlist, &showlist);
- deprecated_add_show_from_set
- (add_set_enum_cmd ("remotelogbase", no_class,
- logbase_enums, &serial_logbase,
- "Set numerical base for remote session logging",
- &setlist),
- &showlist);
-
- deprecated_add_show_from_set
- (add_set_cmd ("serial",
- class_maintenance,
- var_zinteger,
- (char *)&global_serial_debug_p,
- "Set serial debugging.\n\
-When non-zero, serial port debugging is enabled.", &setdebuglist),
- &showdebuglist);
+ add_setshow_enum_cmd ("remotelogbase", no_class, logbase_enums,
+ &serial_logbase, _("\
+Set numerical base for remote session logging"), _("\
+Show numerical base for remote session logging"), NULL,
+ NULL,
+ NULL, /* FIXME: i18n: */
+ &setlist, &showlist);
+
+ add_setshow_zinteger_cmd ("serial", class_maintenance,
+ &global_serial_debug_p, _("\
+Set serial debugging."), _("\
+Show serial debugging."), _("\
+When non-zero, serial port debugging is enabled."),
+ NULL,
+ NULL, /* FIXME: i18n: */
+ &setdebuglist, &showdebuglist);
}
projects / binutils.git / blobdiff